2009 NISSAN LATIO service

CAMSHAFT
EM-181
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• Thickness of new valve lifter (B) can be identified by stamp
mark (A) on the reverse side (inside the cylinder).
Stamp mark “302” indicates 3.02 mm (0.1189 in) in thickness.
NOTE:
Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to EM-227, " Standard and Limit " .
5. Install the selected valve lifter.
6. Install camshaft. Refer to EM-170, " Removal and Installation " .
7. Install timing chain and related parts. Refer to EM-160 .
8. Manually rotate crankshaft pulley a few rotations.
9. Make sure that the valve cl earances is within the standard.
10. Installation of the remaining components is in the reverse order of removal. Intake : 0.30 mm (0.012 in)
Exhaust : 0.33 mm (0.013 in) PBIC3196J

EM-182< SERVICE INFORMATION >
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OIL SEAL
OIL SEAL
Removal and Installation of Valve Oil Seal INFOID:0000000004307147
REMOVAL
1. Remove camshafts. Refer to EM-170, " Component " .
2. Remove valve lifters. Refer to EM-170 .
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve from dropping into cylinder.
CAUTION:
When rotating crankshaft, be careful to avo id scarring front cover with timing chain.
4. Remove valve collet. • Compress valve spring using Tool (A). Remove valve collet
with a suitable magnet hand (B).
CAUTION:
When working, be careful not to damage valve lifter holes.
5. Remove valve spring retainer, valve spring and valve spring seat.
6. Remove valve oil seal using Tool (A).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Press in valve oil seal to the height (H) shown using Tool (A).
3. Installation of the remaining components is in the reverse order of removal.
Removal and Installation of Front Oil Seal INFOID:0000000004307148
REMOVAL
1. Remove the following parts. • Front fender protector (RH); Refer to EI-24 .
Tool number : KV101092S0 (J-26336-B)
PBIC3727E
Tool number :KV10107902 (J-38959)
PBIC3728E
Height (H) : 15.1 - 15.7 mm (0.594 - 0.618 in)
Tool number : KV10115600 (J-38958) PBIC3211J

OIL SEAL
EM-183
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• Drive belt; Refer to
EM-136, " Component " .
• Crankshaft pulley; Refer to EM-160, " Component " .
2. Remove front oil seal using a suitable tool. CAUTION:
Be careful not to damage front cover and crankshaft.
INSTALLATION 1. Apply new engine oil to new front oil seal joint surface and seal lip.
2. Install front oil seal so that each seal lip is oriented as shown.
• Install front oil seal (2) using a suitable tool with outer diameter57 mm (2.24 in) and inner diameter 45 mm (1.77 in) (A) to the
dimension as shown.
CAUTION:
• Be careful not to damage front cover and crankshaft.
• Press-fit oil seal straight to avoid causing burrs or tilting.
• Do not touch grease applied on oil seal lip.
3. Installation of the remaining components is in the reverse order of removal.
Removal and Installation of Rear Oil Seal INFOID:0000000004307149
REMOVAL 1. Remove transaxle assembly. Refer to MT-58 (M/T models),
AT-232 (A/T models),
CVT-182 or
CVT-354 (CVT models).
2. Remove clutch cover and clutch disk (M/T models). Refer to CL-15 .
3. Remove drive plate (A/T or CVT models) or flywheel (M/T models). Refer to EM-199, " Component " .
4. Remove rear oil seal with a suitable tool. CAUTION:
Be careful not to damage crankshaft and cylinder block.
INSTALLATION 1. Apply the liquid gasket lightly to entire outside area of new rear oil seal. Use Genuine Silicone RTV Seal ant or equivalent. Refer to GI-42, " Recommended Chemical Prod-
uct and Sealant " .
A : Dust seal lip
B : Oil seal lip
: Engine front
: Engine rear PBIC3485J
1 : Front cover
: Engine front
Within 0.3 mm (0.012 in) toward engine front
Within 0.5 mm (0.020 in) toward engine rear PBIC3729E

EM-184< SERVICE INFORMATION >
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OIL SEAL
2. Install rear oil seal so that each seal lip is oriented as shown.
• Install rear oil seal with a suitable tool with an outer diameter115 mm (4.53 in) and inner diameter 90 mm (3.54 in) (A).
CAUTION:
• Be careful not to damage crankshaft and cylinder block.
• Press-fit oil seal straight to avoid causing burrs or tilt-
ing.
• Do not touch grease applied onto oil seal lip.
• Install rear oil seal (1) to the position as shown.
NOTE:
The standard surface of the dimension is the rear end surface of
cylinder block.
3. Installation of the remaining components is in the reverse order of removal. A : Dust seal lip
B : Oil seal lip
: Engine outside
: Engine inside PBIC3485J
PBIC3951E
A : Rear end surface of cylinder block
PBIC3761E

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CYLINDER HEAD
On-Vehicle Service INFOID:0000000004307150
CHECKING COMPRESSION PRESSURE 1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-574, " Fuel Pressure Check " (Type 1) or
EC-1086, " Fuel Pressure
Check " (Type 2).
3. Disconnect fuel pump fuse (1) to avoid fuel injection during mea- surement.
4. Remove engine cover. Refer to EM-141, " Component " .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-153 .
6. Connect an engine tachometer (not required in use of CONSULT-III).
7. Install a suitable compression tester (B) with an adapter (A) onto spark plug hole.
• Use the adapter whose picking up end inserted to spark plug hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
Compression pressure: Unit: kPa (bar, kg/cm2
psi) /rpm
CAUTION: : Vehicle front
LBIA0459E
SBIA0533E

CYLINDER HEAD
EM-187
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4. Remove drive belt. Refer to
EM-136, " Removal and Installation " .
5. Remove the following components and related parts. • Exhaust manifold; Refer to EM-144 .
• Intake manifold; Refer to EM-141 .
• Fuel tube and fuel injector assembly; Refer to EM-156 .
• Water outlet; Refer to CO-47 .
• Rocker cover; Refer to EM-153 .
• Front cover, timing chain; Refer to EM-160 .
• Camshaft; Refer to EM-170 .
6. Remove cylinder head. • Loosen bolts in reverse order as shown.
• Using TORX socket (size E18), loosen cylinder head bolts.
7. Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter • Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between (d1) and (d2)
exceeds the limit, replac e them with a new one.
• If reduction of outer diameter appear s in a position other than (d2),
use it as (d2) point.
Cylinder Head Distortion NOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to EM-216, " Inspec-
tion After Disassembly " .
1. Wipe off engine oil and remove water scale (like deposit ), gasket, sealant, carbon, etc. with a scraper.
CAUTION:
Never allow gasket debris to enter passag es for engine oil or engine coolant.
2. At each of several locations on bottom surface of cylinder head, measure the distortion in six di rections using straightedge (A)
and feeler gauge (B).
• If it exceeds the limit, replace cylinder head.
INSTALLATION 1. Install cylinder head gasket.
2. Apply new engine oil to threads and seating surface of bolts. CAUTION: : Engine front
PBIC3206J
Limit [(d1) – (d2)]: 0.15 mm (0.0059 in)
PBIC3994E
Limit: 0.1 mm (0.004 in)
PBIC3207J

EM-188< SERVICE INFORMATION >
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CYLINDER HEAD
If cylinder head bolts re-used, ch eck their outer diameters before in stallation. Follow the "Cylinder
Head Bolts Outer Diameter" procedure.
3. Install cylinder head, follow the steps below to tighten cylinder head bolts in numerical order as shown.
: Engine front
CAUTION:
Check and confirm the tightening angle by using Tool (A) or
protractor. Never judge by vi sual inspection without the
tool.
4. Installation of the remaining components is in the reverse order of removal.
Component INFOID:0000000004307153
Step a : 40 N·m (4.1 kg-m, 30 ft-lb)
Step b : 100 ° clockwise
Step c : Loosen to 0 N·m in the reverse order of tight- ening.
Step d : 40 N·m (4.1 kg-m, 30 ft-lb)
Step e : 100 ° clockwise
Step f : 100 ° clockwise
Tool number : KV10112100 (BT-8653-A) PBIC3206J
PBIC3208J
PBIC3543J

EM-190< SERVICE INFORMATION >
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CYLINDER HEAD
3. Install valve oil seal. • Install with a valve oil seal using Tool (A) to match dimensionas shown.
NOTE:
Dimension (H) is height that measured before installing valve
spring (with valve spring seat).
4. Install valve. • Install larger diameter to intake side.
5. Install valve spring (with valve spring seat). • Install smaller pitch (valve spring seat side) to cylinder head
side (B).
• Confirm identification color (A) of valve spring.
6. Install valve spring retainer.
7. Install valve collet. • Compress valve spring using Tool (A). Install valve collet with a magnet hand.
CAUTION:
When working, be careful not to damage valve lifter holes.
• Tap valve stem edge lightly with a plastic hammer after instal- lation to check its installed condition.
8. Install valve lifter. • Install it in the original position.
9. Install spark plug using suitable tool.
Inspection After Disassembly INFOID:0000000004307155
VALVE DIMENSIONS
• Check dimensions of each valve. For dimensions, refer to EM-227, " Standard and Limit " .
• If dimensions are out of the standard, replace valve.
VALVE GUIDE CLEARANCE
Valve Stem Diameter Tool number : KV10115600 (J-38958)
Height (H) : 15.1 - 15.7 mm (0.594 - 0.618 in) PBIC3211J
1 : Valve spring seat (Do not remove from valve spring.)
Intake : White
Exhaust : Orange PBIC3462J
Tool number : KV101092S0 (J-26336 B)
PBIC3209J